Bilateral anterior spinal screws and surgical procedure
AssigneeGlobus Medical, Inc.
InventorsMatthew McClelland, John LaColla
Life of this patent
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Abstract
Devices, systems, and methods configured to treat spinal deformities, such as anterior scoliosis correction. A bilateral anterior system may include a bilateral anterior screw having a threaded shaft with modular connectors at each end. The bilateral anterior screw is configured to extend completely through a vertebral body such that the modular connectors are exposed on both sides of the vertebral body. An ipsilateral construct including a first rod or cord is securable to the modular connector on an ipsilateral side, and a contralateral construct including a second rod or cord is securable to the modular connector on a contralateral side, thereby completing a bilateral stabilization.
Claims20
A bilateral anterior system comprising:
- a bilateral anterior screw having a threaded shaft with modular connectors at each end, wherein the bilateral anterior screw is configured to extend completely through a vertebral body such that the modular connectors are exposed on both sides of the vertebral body;
- an ipsilateral construct including a first rod or cord securable to the modular connector on an ipsilateral side with a first tulip and a first locking cap;
- and
- a contralateral construct including a second rod or cord securable to the modular connector on a contralateral side with a second tulip and a second locking cap.
A method for treating a spinal deformity of a patient, the method comprising:
- accessing a vertebral body of a vertebra through an anterior or lateral approach;
- inserting a bilateral anterior screw completely through the vertebral body such that modular connectors are exposable on an ipsilateral side and a contralateral side of the vertebral body;
- attaching and securing a first rod or cord onto the modular connector on the ipsilateral side to form an ipsilateral construct;
- flipping the patient over and accessing the vertebral body on the contralateral side;
- exposing the modular connector on the contralateral side by:
- (a) removing a temporary nose cone to reveal the modular connector hidden by the temporary nose cone, or (b) replacing a modular nose cone with the modular connector;
- and
- attaching and securing a second rod or cord onto the modular connector on the contralateral side to form a contralateral construct.
A bilateral anterior screw assembly comprising:
- a bilateral anterior screw having a threaded shaft with a proximal modular connector at one end and a distal modular connector at an opposite end;
- and
- a removable nose cone configured to temporarily cover the distal modular connector for insertion of the bilateral anterior screw into bone,
- wherein the bilateral anterior screw is configured to extend completely through a vertebral body, and after implantation, the nose cone is removable to expose the distal modular connector.
Dependencies are inferred from the claim text.